Cause
This means that the code has been blocked by Kaspersky Lab engineers to prevent it being used illegally.
You must activate the application with a new activation code.
Solution
To get a new activation code, contact Kaspersky Lab technical support:
- Through My Kaspersky, if you are using Kaspersky Internet Security, Kaspersky Anti-Virus, or Kaspersky Total Security. For instructions, see Online Help.
- Through Kaspersky Small Office Security Management Console, if you are using Kaspersky Small Office Security. For instructions, see Online Help.
- Place and date of purchase
- Activation code or license key
- License owner information
You can buy a new activation code in the online store or through a Kaspersky retail partner.
What to do if the error occurred while using a trial version
If the “Key is blocked” error occurred while using a trial version of a Kaspersky Lab product, submit a request with a detailed description of the issue to Kaspersky Lab technical support:
- Through My Kaspersky for Kaspersky Internet Security, Kaspersky Anti-Virus or Kaspersky Total Security. See the Online Help page for instructions.
- Through the Kaspersky Small Office Security Management Console for Kaspersky Small Office Security. See the Online Help page for instructions.
Source : Official Kaspersky Brand
Editor by : BEST Antivirus KBS Team